Synthesis and characterization of 4-arm star side-chain liquid crystalline polymers containing azobenzene with different terminal substituents via ATRP
文献类型：期刊论文
| 作者 | Tang, Xinde; Gao, Longcheng; Han, Nianfeng; Fan, Xinghe; Zhou, Qifeng |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 45期号:15页码:3342-3348 |
| 关键词 | 4-arm Star Polymer Atom Transfer Radical Polymerization (Atrp) Azobenzene Linear Homopolymer Liquid Crystalline (Lc) Polymer Star Polymers |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.22084 |
| 英文摘要 | 4-Arm star side-chain liquid crystalline (LQ polymers containing azobenzene with different terminal substituents were synthesized by atom transfer radical polymerization (ATRP). Tetrafunctional initiator prepared by the esterification between pentaerythritol and 2-bromoisobutyryl bromide was utilized to initiate the polymerization of 6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate (MMAzo) and 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate (EMAzo), respectively. The 4-arm star side-chain LC polymer with p-methoxyazobenzene moieties exhibits a smectic and a nematic phase, while that with p-ethoxyazobenzene moieties shows only a nematic phase, which derives of different terminal substituents. The star polymers have similar LC behavior to the corresponding linear homopolymers, whereas transition temperatures decrease slightly. Both star polymers show photoresponsive isomerization under the irradiation with UV-vis light. (C) 2007 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000248021700017 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61987]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fan, Xinghe |
| 作者单位 | 1.Jiao Tong Univ, Inst New Mat, Shandong 250023, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Dept Polymer Sci & Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Phys Minist Educ, Key Lab Polymer Chem, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Xinde,Gao, Longcheng,Han, Nianfeng,et al. Synthesis and characterization of 4-arm star side-chain liquid crystalline polymers containing azobenzene with different terminal substituents via ATRP[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2007,45(15):3342-3348. |
| APA | Tang, Xinde,Gao, Longcheng,Han, Nianfeng,Fan, Xinghe,&Zhou, Qifeng.(2007).Synthesis and characterization of 4-arm star side-chain liquid crystalline polymers containing azobenzene with different terminal substituents via ATRP.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,45(15),3342-3348. |
| MLA | Tang, Xinde,et al."Synthesis and characterization of 4-arm star side-chain liquid crystalline polymers containing azobenzene with different terminal substituents via ATRP".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 45.15(2007):3342-3348. |
入库方式： OAI收割
来源：化学研究所
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